165137841074 has 8 divisors (see below), whose sum is σ = 247709455788. Its totient is φ = 82568022480.

The previous prime is 165137841049. The next prime is 165137841091. The reversal of 165137841074 is 470148731561.

It can be written as a sum of positive squares in 2 ways, for example, as 149078615449 + 16059225625 = 386107^2 + 126725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189077 + ... + 605000.

Almost surely, 2^165137841074 is an apocalyptic number.

165137841074 is a deficient number, since it is larger than the sum of its proper divisors (82571614714).

165137841074 is a wasteful number, since it uses less digits than its factorization.

165137841074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898060.

The product of its (nonzero) digits is 564480, while the sum is 47.

It can be divided in two parts, 16513 and 7841074, that added together give a palindrome (7857587).

The spelling of 165137841074 in words is "one hundred sixty-five billion, one hundred thirty-seven million, eight hundred forty-one thousand, seventy-four".